Rename Cortex Hercules AE to Cortex 78 AE

Change-Id: Ic0ca51a855660509264ff0d084c068e1421ad09a
Signed-off-by: Jimmy Brisson <jimmy.brisson@arm.com>
diff --git a/plat/arm/board/fvp/platform.mk b/plat/arm/board/fvp/platform.mk
index 4565d05..f2a2ede 100644
--- a/plat/arm/board/fvp/platform.mk
+++ b/plat/arm/board/fvp/platform.mk
@@ -121,7 +121,7 @@
 					lib/cpus/aarch64/neoverse_n1.S		\
 					lib/cpus/aarch64/neoverse_e1.S		\
 					lib/cpus/aarch64/neoverse_zeus.S	\
-					lib/cpus/aarch64/cortex_hercules_ae.S	\
+					lib/cpus/aarch64/cortex_a78_ae.S	\
 					lib/cpus/aarch64/cortex_klein.S	        \
 					lib/cpus/aarch64/cortex_matterhorn.S	\
 					lib/cpus/aarch64/cortex_a65.S		\